Radiator.



A. F. ROSEN.

RADIATGR.

APPLICATION FILED MAY 14, 1912.

1,076,704. Patented-001.28, 1913.

3 SHEETS-SHEET 1.

A. F. ROSEN.

RADIATOR.

APPLIOATION FILED MAY 14, 1912.

Patented Oct. 28, 1913.

3 SHEETSr-SHEET 2.

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A. I'. ROSEN.

RADIATOR.

APPLICATION FILED MAY 14,'1912.

Patented Oct. 28, 1913.

3 SHEETS-SHEET 3.

hereinafter novara..

STA

ES PATENT OFFICE.

RADIATOR.

T o zZ/ 'whom it may concern:

Be it known that l, AUGUST l?. ROSEN, of Madison, Dane county, Wisconsin, have invented certain new and useful improvements in Radiators, of which the following is a. specification.

lily invention relates to radiators for use in connection with steam, vacuum steam, or vapor heating systems and the object of the invention is to provide means for automatically controlling the air relief and thereby regulate the radiation by controlling the number of sections in the radiator into which steam is admitted.

rl`he invention consists generally in various constructions and combinations, all as described and particularly v pointed out in the claims.

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ln the accompanying drawings forming part of this specification, Figure 1 is a side elevation., partiallyin section, of a steam radiator embodying my invention, Fig. 111 is a side elevation, partially in section, of a steam radiator embodying my invention, showing a modified construction, Fig. 2 is a vertical sectional view through one ot the sections, oliv the modied construction, Eig. 3 is a horizontal sectional view on the line .v-a2 of lEig. 2, lig. 4 is a detail sectional view of the valve by means of which the admission ot the steam to the radiator sections is controlled, Fig. 5 is a detail sectional view of the check valve tor preventing the return ot air into the radiator when the steam condenses.

ln the drawings, 2 represents a steam supply pipe having a suitable valve 3. 'lhe radiator is shown as composed'ot a series of sections l connected with one another at the bottom by suitable nipples 5. llt the top the sections are connected by nipples 6 and provided with webs or walls 7 which close the passage between the adjoining sections. 'lhese webs have holes S therein into which a thermostatic device, such as an expansion tube 9 is inserted. @ne end of this Itube is anchored in the plug 10 in the outer section of the radiator. The tube 9 communicates through the plug 10 with an air pipe 11 connected with an air line pipe and provided with a valve 12 having a ball check 13 normally resting on :1 seat 14 and allowing the air to escape from the radiator but capable of being lifted to close the port 15 and prevent the passage oi air from the system into the radiator as the steam con- Specication of Letters Patent.

Application filed May 14, 1912.

Patented Uct. 28, 1913.

Serial No. 697,163.

suitable material, preferably copper, that is.

locked in the wall of the section by a suitable means, such as a ring 20. This diaphragm allows the movement of the valve 16 and dispenses with the usual packing. A stem 21 is tapped into the wall oi a plug 21 and has an operating handle 22 and a `tlanged inner end 23 that is slidable in the head of the -stem 17 against the tension of a spring 24. This spring is adapted to take up any strain or expansion after the valve has been seated and the valve 16 is thereby held on its seat with a yieldingpressure. The locking ring 20 is exteriorly threaded and is adapted to tit into an interiorly threaded recess in the end of the plug 21', the inner edge of the ring bearing on the edge of the diaphragm and locking .it Securely against the bottom of the recess.

Under the construction illustrated the sections under normal .conditions of operation are heated in succession, the progressive heating being in proportion to the volume of air displaced by the progressive iow of steam and allowed to pass olf from the radiator. The tube 9 is heated progressively in degree from the steam inlet end ot' the radiator toward the other end of the radiator until the tube is expanded suiiicient-ly to close or shut off the escape of air trom the radiator, the air which does not escape or exhaust serving as a cushion to check or hold back the steam and thus control the number of radiator sections that may give forth their maximum etliciency. lhe number of sections heated will depend upon the position of the valve 16. lf it is open a considerable distance, several sections of the iadiator will become heated betere the errpansion of the tube will be sufficient to close the opening and shut oli the escape of the air. 0n thefcontrary, it the valve is only' opened slightly, the escape opening will soon be closed and only one of the sections will be heated before the air escape is cut oli. ln this way any number ot the radiator sections may be heated by simply adjusting the relief valve, the air escape being automatically closed and further entrance oi steam into the radiator being prevented by the air cushion. Thel steam entering the radiator Will expand equally in all directions and being lighter than the air in the radiator. Will rise in the radiator sections successively, beginning with the first. The air will act as a cushion and Will be forced upon the entrance of the steam toward the last section, While the steam will rise in the first section and contact with the thermostatic tube, the air displaced being forced out through the open end of. the tube in the last section. If there is sufiicient pressure of steam, successive sections Will be filled and an additional length or surface of the thermostatic tube exposed to the steam until the expansion of the tube is sufiieient to close the air exit opening and prevent further discharge of the air and thereby check the entrance'ot steam into the remaining sections. VThe steam Will enter the radiator only as fast as the air escapes and leaves room for it, and

Will expand and till the sections regardless of the number of passages or loopsthere may be in the sections. As soon as the iirst section is lled the steam expands in the same manner in the second, and so onruntil the radiator is filled or until the air exit is cut ofi". The expanding tube Will close the opening between it and the valve,l thereby shutting off the escape of air, and the air remaining in the radiator Will prevent the further entrance of the steam. Y

The inlet opening to the expansion tube is preferably, as shown, in direct communilcation With the last section of the radiator or the one most distant from the steam supply pipe, and consequently communication with the other sections will be in series, the

air in the last section passing out iirst as the .a Wall 25 extending fbetween the passages leading to adjoining sections and compelling the steam as it enters the section to iiow to the top of the section on one side of the Wall and down to the bottom of the section on the other side of the wall'before it can enter the passage leading to the adjoining section; With this construction the flow of steam upwardly through each section successively is insured.y Each Wall at the bottom of the sections is preferably provided with a port 26 through which the Water of condensation mayfiow back to the supply pipe, a sutiicient amount of water remaining in the radiator to seal the ports 26 against the passage of steam therethrough.

mounting it in the radiator, as in variousA Ways it may be changed and still be Within the scope of my invention. Obviously, the radiator may be made in various sizes, the

expansion tube operating in 'substantially the same manner regardless of the number oi" sections employed.

I claim as my invention 1. A radiator comprising a plurality ot sections, an expansion tube exposed to the steam within said sections and having an exhaust opening and an inlet opening communicating with said sections in series, and means for closing said inlet opening When said tube has expanded to a predetermined degree by contact with the steam in said sections.

2. A. radiator composed of a series of sections and nipples connecting the sections at the bottom, nipples provided at the upper ends of said sections and having webs or Walls separating one section from the adjoining one, an expansion tube passing through said Webs and having one end communicating With an air reliet` and its other end communicating with said sections in series, a valve closing automatically the opening into said tube, said valve when open allowing air to flow into said tube, the opening into said tube being closed by said valve when said tube has expanded to a predetermined degree by the flow of steam into said sections.-

3. A radiator comprising a series of secator, means separating the passages of one section from the corresponding passages of the adjoining section at the top of the radiator, an expansion tube bridging. the passages of said sections and exposed to the steam iowing therethrough, said tube communicating With an air relief and with sait1 sections, and means for closing said tube when a predetermined number of sections have been heated.

4. A radiator comprising a series of sections joined together, each section having a steam passage up one'side anddown on the other side of the section, means separating the passages of adjoining sections at the top of the radiator, an expansion tube communicating with an air relief and passing through said separating means and adapted to be expanded by contact with the steam and having an open end Within one of said sections, the air from the sections entering said tube and iowing therethrough to said air relief, and means for automatically closing said tube when expanded to a predetermined degree, for the purpose specified.

5. A radiator comprising a series of sec tions joined together,`each section having a steam passage up one side and down the other side of the section, one end of the passage communicating with the steam supply and the other with the adjacent section on the other side, means separating the passages of adjoining sections at the top ofthe radiator, an expansion tube communicating with an air relief and With said sections in series and passing through said separating means and adapted to be expanded by contact with the` steam, the Vair from the sections enteringV said tube and iioWing therethrough to said ,air relief, and means for automatically closing said tube when expanded to a predetermined degree.

6. A radiator comprising a series of sections, an expansion tube disposed Within tsaid sections and exposed to the heat of the steam and having an exhaust opening and an inlet opening communicating with said sections in series, and a valve for closing the inlet of said tube When it is expanded to a predetermined degree by contact with the through said separating means and having an air exhaust opening and an inlet opening communicating with said sections in series, said tube being exposed to the heating effeet of the steam Within said sections, and means for closing said inlet opening When said tube is expanded to a predetermined deree. g 8. A radiator comprising a plurality of sections, a thermostat-ic device exposed to the steam within said sec-tions and having an exhaust openingand an' inlet opening communicating with said sections in series, said thermostatic device including means for closing said inlet opening under exposure of said device to the steam in said sections.

In Witness whereof, I have hereunto set my hand this 7th day of May 1912. AUGUST FREDRICK ROSEN. Witnesses: y

ROBERT L WRIGHT, K. HOUGHTON. 

